Crain separator



Feb. 27, 1923.

P. H. VAUGHN GRAIN SEPARATOR 1, 1920 5 sheets-sheet l Filed Mar.

lF b. 27, 1923. 1,446,527

P. H. VAUGHN GRAIN SEPARATOR Filed Ma 1, 1920 s sheets-sheet 2 Feb. 27

P H' VAUGHN GRAIN SEPARATOR 5 sheet et a 9 Filed Mar,. 1

u luul EEE H.

.Fatenteol Feb. 27, 1923..

U a s PATRICK H. VAUGHN, or Melanie, MINNESOTA.

GRAIN snranaron.

Application file'dirlarch 1,

To all whom it may cancer-1t:

Be it known that I,-PATR1CK H. VAUGHN, a citizen of the United States,residing at ld'orrisin thecounty of Stevens and State of Minnesota haveinventedv certain new a -d useful improvements in Grain Separators; andI do hereby declare the following to'be' a' full (,l'dill',dlld exactdescription of the invention; such as will. enable others skilled in theart to which it appertains to make anduse the same.

My invention relates to improvements in grain separators of the typedisclosed and claimed in my U. S. Letters' Patent #1',321',265,-issuedNovember 11', 1919.

To the above end, the invention consists of the novel devices andcombinations of d vices hereinafter described and defined in the claims.

In the accompanying drawings, which illustrate the invention, likecharacters indicate like parts throughout the several views;

Referring to the drawings:

Fig. 1 is a side elevation of the improved grain separator with someparts broken away;

Fig. 2 is a view of the same in a central vertical section;

1*igj3is a fragmentary transverse section takenon the line 3-3 ofFig. 2;

Fig. 1 is a fragmentary detail view on the line 4 -4; of Fig. 2; and

Fig. 5 is -a fragmentary view in central vertical section illustratingadifferent method of operating the sci'eeningsieve and with the scalpingsieve removed.

The frame of the improved grainseparator includes four legs arranged infront and rear pairs 6 and 7, respectively. The

taken legs of each-pair are rigidly connected at their lower ends byrelatively wide transverse boards 8. The upper ends of the legs 6 and 7are rigidly connected on each side of the separator by bolting the sameto t'hesides of a feed-hopper 9. The legs 6 and 7 are further connectedon each side of the separator by a relatively narrow board 10, and' a"relatively wide board 11, the' former ofwhich islocated just under thehopper 9' and is inclined toward the rear of "the's'eparator, and thelatter of which is located just above the transverse boards 8 and alsoinclined toward the rear of the separe-tor.

The two boards or transverse members 1920. Serial N0. 362,366.

which constitute the bottom of the hopper 9,. are spaced at their loweradjacent edges to afford a feed-opening 12, located-at substantially thecenter of the separator. A feed-roller 13 of the type disclosed andbroadly claimed in my (o-pending U. is. application, filed Dec. 20,1919, under S. 346,326, is located at the feed-opening 12 and its shaftis journaled in bearings 14; secured to the outer faces of the sides ofthe hopper 9. An adjustable gate 15 is pro- Vided for regulating theflow of grain from the hopper 9.

Mounted in the frame, at the front there- OfylS a fan casing 16 having along-roan wardly projecting throat 17, andwhich casing and throat arelocated between and. rigidly secured to a pair of laterally spaced bars18 the rear end portions of which are pivoted at'19 to the lees 7 andthe front end portions of which are rigidly and; adjust-' ably connectedby nut-equipped bolts 20, which extend through slots 21 in said legs 6to permit a slightvertical adjustment of the fan casing 16. Mounted inthe fan c'as ing 16 is a' fan 22, the shaft of which is journaled inbearings 23 secured to the bars 18.

Rigidly secured to the projecting righthand end of the, shaft of thefeed-roller 13 is a large hand-crank-equipped sprocket wheel 24-. A sprc ret chain 25 is arranged to run over the sprocket wheel 24- and arelatively small sprocket wheel 26, secured to the projecting right-handend of the shaft of the fan 0n the other end of the shaft of the fan 22,is secured asecond sprocket wheel 27. Both sprockets'wt and 27 areprovided with wrist pins 28, for a purpose that will presently appear.Located between the hopper 9 and fan casing 16 is a shoe'29, the frontend of which is suspended fronrthe hopper by a pair of links 34). Therear end of the shoe 29'is supported by the upper or short ends of apair of vertically disposed levers 31 interinediately fulcrumed'at 32 onthe bars Mounted inthe shoe29 is a gang of sealp in; sievesS-fl. underwhich is an imperferate deck-3t secured to the shoe 29'with s deliver -Jend terminating under the receiving portion of the lowermost sie've ofthe gang $38. Secured in the shoe 29, at the receiving end of theuppermost sieve of the gangSB, is an img jerforate deck 35,-which.- asshown, is'an independent member-from the frame of said uppermost sieve,but in some instances, might constitute theupper' transverse portion ofsaid frame. Vibratory movement is imparted to the shoe 29, through thelevers 31, by a pair of operating bars 36 having one of their endssecured to the wrist pins 28 and their other ends pivotally connected tothe lower or long ends of said levers 31, y

The rear end of the top plate of the fan casing throat 17 terminatessubstantially under the delivery end of the "deck 34 and is curvedslightly downward to afiord a defleeting flange 37. Extendingupward andforward from the deflecting flange 37 is a deflecting board 38 securedto the bars 18. Secured to the casing throat 17 is a forwardly inclineddeck 39 spaced apart from the flange 37 to afford therebetween apassageway 40 for the grain precipitated from the gang- 88. Grainentering through the passageway 40 will be precipitated onto anunderlying adjustable deflector 41 arranged to direct the said graintoward the front of the machine. The rear end of the bottom plate of thethroat 17 terminates short of .the deflector 40 to afford therebetween arelatively wide grain passageway '42, and

which rear end portion of the said bottom plate is curved upward toafford a deflecting surface 43. 1

Anadjustable damper 44 is mounted in the throat 17. Underlying the fancasing 16 and its throat 17 is a lower rearwardly inclined sieve 45,mounted for reciprocatory movement on cleats 46 secured to the frameboards 11. Underlying the sieve 45 and cooperating with the under facethereof, is a multiplicity of transverse cleaning slats 47, which arerigidly connected by a plurality of longitudinal bars 48, which, inturn, are

secured to a plurality of transverse bars 49,

the ends of which are removably seated in the cleats 46.- Reciprocatorymovement is imparted to the rear sieve 45 from the levers 31 by arock-shaft 50 and a rod 51. The ends of the rock-shaft 50 are pivoted inthe levers 31,-and one end of the rod 51 is inserted through theintermediate portion of the rock-shaft 50 and is adj ustably securedthereto by a pair of opposing nuts 52. The other end of the rod 51 isbent laterally upward to form 'a pivot, which is mounted in a boreformed in'the rear transverse member of the frame of the lower sieve 45.

Above the shoe 29, is a downwardly and forwardly inclined upperscreening sieve 53, and it is important to note that this sieve isinclined in an opposite direction from the gang of sieves 33. Thescreening sieve 53 is mounted for reciprocatory movement that is obliqueto the movement of the shoe 29 on cleats 54 secured to the boards 10.Re-

ciprocatory movement is imparted to the screening sieve from" the shoe29, v as gitudinally spaced holes inthe levers 55 to permit said rockbar to be adjusted toward or from the fulcrums of the levers 55. v

One end of the link 58, which, as shown, is in the form of arod, isinserted throughpn Y bore in the'intermediate portion of the rock 1 bar57 and adjustably secured thereto by a pair of opposing nuts 59, whichhave screwthreaded engagement therewith, to vary the "operativelength ofsaid link. The other end of the link 58 is bent laterallyv downwardtoforma pivot pin 60 turnably mounted in a bore in the uppertransversememberof the frame of the screening sieve 58.. Thezlower ends of thelever 55. are pivotally connectedtof the sides of the shoe 59 byv a pairof I links 61.

' The connections just described, for imparting thereciprocatory.movement of the screening sieve 53 from the shoe 29, are such@ as tomove said screening sieve simultaa direction. Underlying thev screening.sieve '53 is a multiplicity of laterally spaced trans-z verse cleaningbars 62 which co-operate with:

the under face of said sievetokeep the: same :neously with the shoe 29,.but .in an opposite clean. These cleaning bars 62 are-secured tolongitudinally extended. bars 63, which, in turn, are secured tobars'l64, the ends Off: which. are mounted in seats formed in the cleats54 and removably' support the cleaning bars 62 from the frameboards-10.- .Ob' viously, by adjusting the nuts 59, the operative lengthof the link 58 may be changed, at will, to vary the position ofthescreening sieve 53 on the cleaning bars 62. Q

The delivery end of the screening sievex5i-l terminates over theimperforate deck .35.. Underlying the screening sieve 53 'isa. pan.

65 carried by the shoe 2i) and arranged to deliver, to the left-handside. of the'separator, materials precipitated from said;

screening sieve. hopper 9 and cleaning sieve 53, is a scalping. sieve66. which. as shown. is supported upon and detachably secured to theframe of said cleaning sieve. it its delivery end extended beyond the:de livery end of the cleaning sieve 53 to sup Interposed between the:

This scalping sieve 66 has port and hold a transversely inclined'trough67 arranged to chine.

Referring in Fig. the connections 55 to 61, inclusive,

deliver to one side ofthesmanow to the construction shown.

..the same direction with the shoe 29. To

thus reciprocate the screening sieve 53, the levers at their upper-ends,are pivoted to the sides of the hopper 9 and the lower ends of saidlevers are pivotally connected to the sides of the shoe 29 by the links61. The links 61 may be attached to the levers at differentlongitudinally spaced points .to vary the swinging movement of saidlevers. The rock bar 57 'is intermediately pivoted to the levers 55 w1thfreedom for adjustment longitudinally in respect thereto.

Operation.

The materials to be separated are placed in the hopper 9, as indicatedat a, and the mo able parts of the machine operated by turning thehand-crank-equipped sprocket wheel 24 in a direction to cause thefeed-roller l3 and fan 22 to rotate, as indicated by arrows marked onFig. 2. Under the rotation of the feed-roller 13, a constant and evenfeed of materials, from the hopper 9 to the screening sieve 53, isobtained. The sca-lping sieve 66 is provided to remove from thematerials a, all coarse materials, such as sticks, straws and the like,and deliver the same to one side of the machine through the trough 67.The reciprocatory movement of the screening sieve 53 causes themate-rials a thereon to travel downward. During this travel of thematerials a on the sieve all dust and small foul seeds are releasedtherefrom, screened through said sieve and precipitated into the pan anddelivered at one side of the separator, as indicated at I).

By the use of the rake bars 62, it is possible to use a wire mesh screenfor removing dust and small foul seeds from the materials a. By thusfirst separating the dust and small foul seed from the materials a, themachine is free from dust when said materials are subjected to the airblast after passing through the scalping sieve. It also immediatelyrelieves the machine from handling such materials as removed by thescreening sieve 53. Materials a, tailed over the screening sieve 53, areprecipitated onto the deck 35 and the direction of travel thereofreversed by the deck from the front to the rear of the machine.

From the deck the remaining materials a, to be separated, are deliveredto the gang of sieves 33, and the streams of grain passing downwardthrough said gang are indicated at c. All coarse material, not removedby the scalping sieve 66 from the small seed grains, such as wheat,barley, rye, flax, etc., will be deposited at the rear of the machine bythe gang of sieves 33, as indicated at (Z. The streams of grain c,

from the gang of sieves 33, are deposited on the deflecting board 38 anddeck 39, from whence they will be delivered through the passageway 40,with'the assistance of the deflector 37, and precipitated onto theadjustable defiector 41. Atthis time, the grain c is subjected to theunder-shot'blast of air from the fan 22, which removes therefrom allmaterials not desirable for seed. Of course, by regulating the damper M,the amount of such materials removed from the grain may be varied, atwill. From the deflector ll, the grain c is precipitated directly ontothe sieve 45, which again changes the direction of travel of said grainfrom the rear to the front of the machine "and removes the oatstherefrom, as indicated at 6. By independently mountingthe screeningsieve 53 in respect to the shoe 29, a very smooth reciprocatory movementis imparted thereto, which is highly desirable in the separation ofgrass seed, clover seed, and the like. As previously stated, theconnections shown in Fig. 2 impart a simultaneous re verse movement tothe screening sieve 53 in respect to the shoe 29 and, by shifting thefulcrums 56 on the levers 55, the throw of said sieve may be varied, atwill, or the rock bar 57 may be longitudinally adjusted on the levers tovary the throw of the sieve 53. In the arrangement of the operatingconnections for the screening sieve 53 in Fig. 5, the throw of saidsieve may be varied in respect to the shoe 29 either by raising orlowering the connection of the links 61 with the levers 55, or raisingor lowering the rock bar 57 on said levers, or both of said adjustmentsmay be made.

What I claim is 1. A grain separator comprising a frame, a feed hoppermounted at the top thereof, an inclined scalping sieve slidably mountedbeneath the hopper and receiving therefrom a fine screening sieveslidably mounted beneath said scalping sieve, a stationary cleaningdevice disposed beneath said fine sieve and closely adjacent thereto, aswinging sieveequipped shoe to which said fine sieve delivers mountedbelow the same and a laterally delivering pan carried by said shoe andextending beneath said fine screening sieve.

2. A grain separator having in combination, a frame, a feed hopper atthe top there of, an inclined scalping and a fine screening sievesuperposed and slidably mounted as a unit beneath said hopper, alaterally discharging trough carried by said scalping sieve, a removablecleaning device carried by said frame beneath said fine screening sieve,a swinging sieve-equipped shoe mounted below said sieves and inclinedoppositely thereto onto which the fine sieve discharges, and a laterallydischarging pan carried by said shoe extending beneath said finescreening sieve.

3. A grain cleaner having in combination, a frame, a hopper at the topthereof, a scalping and fine cleaning sieve slidably mounted below thehopper,- a cleaning device beneath ,the latter and in substantialcontact there with, a swinging sieve-equipped shoe mounted beneath saidsieves and carrying a pan- ,tact with the bottom of said latter screen.

at. ihWl'lGilt cleaner havingin combination, a frame, a hopper disposedat the top thereof, a scalping sieve and a fine screening sieve slidablymounted adjacent said hopper for srenioving the coarse and fine refuserespectively, de jiending links at one side of said top 01"? said leverfor removing foul and foreign seeds, a sliding sieve bt'lOW said shoeconnected to said levers between their pivot joints and the'lovver endsthereof for'removing oats from the Wheat, a driving "shaft;

and a crank operated pitman connected to the lower end of said levers toreciprocate said shoe and last mentioned. sieve and driven by saidshaft. p

In testimony whereof I aliix my signature in presence of two Witnesses.

PATRICK H. VAUGHN.

Witnesses: v

WINIFRED I. HARD, HARnY D. Knieonn.

